history of software freedom

in the beginning, all users were free
	computers [examples?] came with software
	software source code was shared freely
	companies saw no reason to lock it away or forbid sharing and modification
	something about hackers and the MIT model railroad club?
proprietarization
	mostly through the 1970s
	IBM in 1969[?]
	copyright extended to software
	"Open Letter to Hobbyists"
GNU
FSF
EULAs
	legally-binding contracts
	began as a way to limit warranties and disclaim liability
	in the mid 1980s, became popular in forbidding sharing and modification
Linux
open source, Netscape
something on DRM maybe?
modern EULAs
	limit free speech
	allow developer to change software remotely without notice

to add:
FSF
FSD
Linux
open source, Netscape

one or both:
commercial free software
	many believe that money can't be made in open source and free software
		logical fallacy, false exclusionary disjunct
	if a license said that software can't be offered for a price
		it would be non-free
	...
copyright law and free software and open source licenses
	freedom 0 isn't affected by copyright law
	free sw licenses work only on copyright law, never on e.g. contract law
	licenses must authorize (in U.S. law):
		reproduction of copies of work
		preparation of derivative works based upon work
		distribution of copies of work
	"public domain" troubles
	license examples
		copyleft vs. permissive
		GPL licenses, BSD licences, Expat and X11 licenses, Apache license, etc.